I have spring boot application which uses application.yml for configuration. The structure is something like:

...
rmq:
  host: "host"
  port: 5672
...

In my code I have ApplicationConfig class which looks like below:

@AllArgsConstructor
class ApplicationConfig {
  private RabbitConfig rabbitConfig;
}

@ConfigurationProperties(prefix = "rmq")
class RabbitConfig {
  @NotNull
  private String host;
  @NotNull
  private Integer port;
}

The problem is that section rmq is optional in my application. And I want field rabbitConfig will init by null in case it is absent in application.yml.

But really if I drop rmq section in config file I've got an error (rmq.host is absent). Is it possible to force springboot to init rabbitConfig with null in that case?